Goggles



y 4, 1933. E. B. MEYROWITZ 1,916,628

GOGGLES Filed March 21, 1929 ATTORNEY Patented July 4, 1933 UNITED.STATES PATENT OFFICE EMIL B. NIEYROWITZ, OF YORK, N. Y., ASSIGNOR TO E.B. MEYROWITZ, INC A CORPORATION OF NEW YORK GOGGLES Application filedMarch 21, 1929. Serial No. 348,851.

This invention is especially serviceable in aviation and other uses inwhich goggles are subjected to heavy wind pressure. In certainparticulars the invention has its chief application to goggles havingeye cups which open up at one transverse joint and flex in their ownplane to open and closed positions to release and secure the lenses. Oneobject of the invention is to provide locking means for such eye cupswhich will be convenient to operate both to open and close the eye cupsand which will be reliable in its function. Another object is to providedependable means in conjunction with the opening and closing means whichwill enlist the cooperation of the head band attachment to hold theclosing means securely in locked position. Another object is to providea novel and improved form of head band attachment which will beconvenient to connect and disconnect, while being secure againstaccidental release. Another object is the elimination of seepage of airaround the edge of the lens. Another object is to provide an improvedform of cushion which will be particularly serviceable and suitable forapplication with the type of eye cups above referred to. Still otherobjects and advantages of my invention will appear from the followingdescription.

The locking structure for the eye cups as contemplated by my invent-ioncomprehends a modified type of toggle arrangement which serves by itsoperation both to open the eye cup so as to admit or release a lens, andto draw it shut and lock it against accidental opening. In a form whichI have found entirely acceptable the catch or hook on the head bandengages in the attaching eye in such relation to the locking elements asto 49 prevent the breaking of the toggle with the consequent opening ofthe joint while the head band vis attached. For security as well asconvenience in attachment of the head band and avoidance of twisting it,I make the hook in convolute form and provide it with aswiveljoint. I

I have found that the seepage of air around the edge of the lenses canbe minimized, and with suflicient care entirely eliminated, by

50 making the bezel or lens-retaining groove in the eye cup of V-shapein cross section and grinding the lens to a corresponding edge. Myinvention accordingly contemplates this shape for these elements. Toavoid the necessity for extreme accuracy in edging the lens to obtainthe required exactness of fit, my invention contemplates'anindividual'rim for each lens which is secured to the lens in such amanner to be proof againstleakage of air, and which by suitable die workmay be made to fit. the bezel exactly or may be of such material as toconform readily to the preciseshape of the bezel. 0

Another phase of my invention relates .to the construction of cushionand mode of securing it in eye cups which are jointed toopen and closein their ownplan-e. A lip which protrudes forwardly from the body of thecushion and fits within the eye cup is reinforced so as to besubstantially'non-deformable and the parts are so shaped as to interengage when the cup is closed while permitting ready insertion of thelip when the cup is open. For example, if the lip is of soft rubber likethe body, it may be reinforced by 7 an internal metallic band'which Ihave found may be vulcanized to the face ofthe lip, and the inner faceof the cup may have upstanding sharp points which will pierce the outerface of the lip when thecup is closed. Alternatively, the lip may be ofhard rubber vul canized to the soft rubber body and have an overhang tointerengage with a flange on the.

cup.

My invention also contemplates other features of construction anddetails and arrangements of parts as will hereinafter more fully appear.w

I shall now describe the illustrated'embodiments of my invention andshall thereafter point out my invention in claims:

Fig. 1 is a top plan of a pair of goggles embodying my invention, theleft goggle being in section;

Fig. 2 is an elevation of the same as viewed from the inner or faceside;

Fig. 3 is an enlarged detail of a portion of the right eye cup in.elevation showing the joint and the associated parts in open position;loo

Fig. 4: is a central circumferential sectional elevation of the same,but in closed position;

Fig. 5 is an end elevation of the same in closed position with the endof the head band and its attaching parts shown attached to the eye cup;

Fig. 6 is an end elevation of the jointed end of the eye cup with theparts in open position; 7

Fig. 7 is a transverse section on line 7-7 of Fig. 5;

Fig. 8 is a transverse section on line 88 of Fig. 2;

Fig. 9 is a top plan of a pair of goggles constituting a somewhatmodified embodi ment of my invention, the left goggle being in sectionand the eye cups being of the socalled flattype as distinguished fromthe curved or meniscus type of Fig. 1;

Fig. 10 is a detail in plan of the lens with its individual rim, asincorporated in the construction of Fig. 9;

Fig. 11 is a transverse section through one of the eye cups andassociated parts of Fig. 9 but with the cushion omitted.

The locking means illustrated in the drawing is the same both for thecurved eye cup 1 of Figs. 1 to 8, inclusive, which takes the meniscuslens 2, and for the'flat eye cup 1a of. Figs. 9 to 11, inclusive,which'takes the fiat lens 2a. The eye cup is of flexible sheet metalstock of substantial width and circumferentially has the usualapproximately oval shape. The eye cup is composed of one continuousstrip of metal which is jointed to open .at the outer or temple end ofthe cup, being expansible and contractible in its own plane due to theflexibility of the metal. The two eye cups of the pair of goggles arecoupled as usual by abridge member 3 and are hinged upon the legs of thebridge in conformity with the construction in this regard which isdisclosed and claimed in my copending application Serial No. 337,559,filed February 5, 1929. The ventilating means at the top and bottom ofthe eye cup are the same as those illustrated in my said copendingapplication and form no part of the present invention.

The ends of the metal strip forming the body of'the eye cup are made tooverlap slightly in closed position. At 'theextremity of one end thereis provided an upstanding eye member 4 into which the head band hooks,as will presently be described. The extremity of the other end 5 of thesheet metal strip is bifurcated and straddles the eye member 4 a's i'toverlaps its companion when the eye cup is closed.

The opening and closing elements which also serve to lock the joint shutcomprise two links that are piyoted respectively to theopp'osite'e'nd'sof'the metal strip forming the body of the eye cup, and arepivoted to each other, constituting in effect a modified form of toggle.They are so pivoted, however, that in closed position they overlap, bothfolding down in the same direction upon the face of the eye cup, theshorter or overlapped element having an extension beyond the point ofpivotal connection with its companion, which extension serves as afinger piece to operate the mechanism. The link 6, which is pivoted tothe bifurcated or overlapping end of the eye cup, is of sufficientlength to extend considerably over the joint and in has the extensionabove referred to which serves'as a finger piece, and is designed tofold down against the face of the eye cup, being provided at its freeend on its under face with a projecting lug 8 which enters a hole in thewall of the eye cup when the parts are folded down to closed position.

The pivot for the member 7 is so located as to permit the two links tobe folded down flat against the eye cup. Due to the connection betweenthe two members, the raising of the member 7 serves to separate the twoends and open the eye cup at the joint, whilethe pivotal movement of themember 7 in the direction to fold itdown against the eye cup serves todraw the two ends together. In this closed position, the link 6 overlapsthe link 7 and the parts are folded slightly past'the center line sothat an expansive or opening strain on the eye cup serves to exert aninward pull upon the operating link 7 and thus pull the locking member'smoretigh tly against the face of the cup in looking position.

As a safeguard against the possibility of an accidental raising of themember 7 and consequent 'o-penin'g'of the eye cup at the'j oint,

means are provided whichcause the hook 9 on the end of the head band 10to hold the locking members against releasing movement while the hook 9is engaged in the eye member 4. Specifically, the link member 6 hasatthe center of its basebetween the two arms of the bifurcation a proecting tongue ll which 111 the closed position of the parts enters theeye member 4. ln'the 'mov ement of the parts to open the eye'cup thistongue 11 has a considerable outward or upward component of movement inaddition tothe backward or receding movement. The hook 9 in the eyemember 4 holds the'to'n'gue '11 against rais ing and 1t 1s,'tl1erefore,impossible to swing the operating link member 7 upwardly to open theparts due' to the engagement of'the tongue 11 againstthe hook' l. Hence,when it is desired to open'the eye cup, it is necessary first to unhooktheheadba'nd.

In the head band construction shown, the hook 9 is of convolute form.This form. of hook is calculated to prevent any accidental detachment ofthe head band. However, it requires the turning of the end of the headband in a complete circle around the eye after the end of the hook isentered in the eye in order to effect the engagement of the hook. Toavoid a twisting of the head band during such manoeuvre as well as toenable the wearer to remove any twist from the head band, the hook has aswivel connection. Specifically, the end of the head band is attached toa metallic loop 12, the hook 9 be ing swiveled to this loop.

The eye cup at its front edge is provided with a circumferentiallens-retaining groove or bezel 13. As above explained, in order toeliminate seepage of air past the edge of the lens 2, this bezel is ofV-shape in cross section and the edge of the lens is correspondinglyshaped. The contraction of the size of the eye cup in its closingmovement draws the walls of the bezel tightly over the edge of the lensand due to the shape of the parts any slight inaccuracies in the litwill be compensated. for since slight variations from the extent towhich the edge is enteredinto the groove will not affect the tightnessof the lit.

In the construction shown in Figs. 9, 10 and 11, the lens has stillfurther provision made against seepage of air past its edge due topossible inaccuracies in the grinding of the edge of the lens. In thisconstruction the lens 2a has its own individual rim 14. This rim may beformed in various ways and of various materials. It may, for example, bepliable sheet metal shaped with suitable tools in engagement upon thebeveled edge of the lens; or it maybe formed from steel or from shell orother material which will require complete formation prior to itsapplication to the edge of the lens. In the latter case its externalsize can be determined with extreme accuracy so that its fit into thegroove of the eye cup will be absolutely tight; while in the former caseit is of such a nature as to adapt itself to the groove. In either casethe lens with its individual rim will constitute a separate article ofmanufacture and will insure a tight fit into the eye cup wlthout thenecessity of extreme accuracy in the size of the lens around its entireperiphery.

The cushion shown in Figs. 1, 2 and 8 has the usual soft rubber body 15which is shaped to the contour of the face and has a lip 15a projectingfrom its outer face and fitting into the eye cup 1. The lip in this caseis of the same composition as the body and is reinforced againstdeformation by an internal metallic band 16 which is vulcanized orotherwise secured to its inner face. The eye cup has about its innerface several inwardly directed sharp points 17 which in the construction.shown are formed by pressing in the metal of-the eye cup. These sharppoints 17 prick into the outer face of the lip 15a when the eye cup isclosed around it and the cushion isthereby secured to the eye cup.

In the construction of cushion shown in Fig. 9, the body 17 of thecushion is of soft sponge rubber while the lip 17 a is of hard rubberthat is, vulcanized to the body of the cushion. This lip 17a is shapedto provide an overhang and forms/an outwardly open retaining groovewithin which an inwardly turned flange 18 on the inner edge of the eyecup engages when the eye cup is closed. lVhen the eye cup is open thelip 17a isreadily inserted past the inturned flange 18. As in theconstruction of my copending application Serial No. 318,357, filedNovember 10, 1928, the cushion in both instances has a short flap 19 onthe nasal end to form an extra cushion for the nose.

It is obvious that various modifications may be made in theconstructions shown in the drawing and above particularly describedwithin the principle and scope of my invention. i

I claim:

1. As a frame member for goggles, an eye cup jointed to opentransversely at one point, and locking means at the joint comprising twooperatively connected links, one pivoted to the eye cup at one side ofthe joint and being of a length substantially to overlap the eye cup atthe other side of the joint, n and the other being pivoted to the eyecup at the other side of the joint between the joint and the overlappingend of the first link at such point as to permit the two links to befolded compactly against the face of the eye cup.

2. As a frame member for goggles, an eye cup jointed to opentransversely atone point, and locking means at the joint comprising twopivotally connected links, one pivoted to the eye cup at one side of thejoint and being of a length substantially to overlap the eye cup at theother side of the joint, and the other being pivoted to the eye cup atthe other side of the joint between the to enter the eye member as thelinks are folded down to close the eye cup.

3. As a frame member for goggles an eye cup jointed to open transverselyat one point,

and locking means at the joint comprising an open link member pivoted toone end of the eye cup body and adapted substantially to overlap theother end, an eye upstanding on the other end of the eye cup body in po-V sition to be straddled by the open link, a

tongue on the link adapted to enter the eye as the link is folded down,and an operating member pivotally connected to the overlapping end ofthe link and pivoted to the said other end of the eye cup body beyondthe said upstanding eye.

4. Goggles including an eye cup jointed to open transversely at onepoint, and locking means at the joint comprising .an open link memberpivoted to one end of the eye cup body and adapted substantially tooverlap the other end, an eye upstanding on the other end of the eye cupbody in position to be straddled by the open link, a tongue on the linkadapted to enter the eye as the link is folded down, an operating memberpivotally connected to the overlapping end of the link and pivoted tothe said otherend of the eye cup body beyond the said upstanding eye anda head band having a hook engaging in the eye on the outer side of saidtongue and restraining the tongue from sutficient outward movement toescape from the eye and permit the cup to open While the hook is in saideye.

5. A goggle member comprising an eye cup having pointed projectionsabout its inner face, and a soft rubber cushion for the inner edge ofthe cup having an outwardly projecting lip fitting within the eye cupand impaled upon said points.

6. A goggle member comprising an eye ner face, and a soft rubber cushionfor the inner edge of the cup having an outwardly projecting lip fittingwithin the eye cup'and impaled upon said points and having a reinforcingbacking band attached to the inner face of the lip.

7. A goggle member comprising an eye cup of flexible materialtransversely jointed at one point to expand and contract-in its ownplane and having pointed projections about its inner face, and a softrubber cushion for the inner edge of the cup having an outwardlyprojecting lip fitting within the eye cup and impaled upon said pointsand haying a reinforcing backing band attached to the inner face of thelip.

8. A goggle member comprising an eye cup ,of flexible materialtransversely jointed at one point to expand and contract ,in its ownplane and having cushion retaining means about its inner face, and asoft rubber cushion for the inner edge of the cup having a relativelyinflexible lip fitting Within the cup .and adapted to be entered thereinwhen the EMIL B MEYBOWITZ.

